Instant Heart Rate is the most accurate heart rate monitor app for iPhone and it does not need any external hardware. Independently tested by nurses, MDs, EMTs and fitness coaches.
Easy to use: takes less than 10 seconds from opening the app to getting a reading.
Place your finger gently over the camera. Hold it steady for at least 10 seconds. Your current heart rate will be shown on the display.
It works by tracking color changes in the light that passes through your finger.
This app constantly evolves and in process improves on ease of use and adds new features. This app is available for both iPhone and Android devices.
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